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Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-3813

Severity CVSS v4.0:
Pending analysis
Type:
CWE-264 Permissions, Privileges, and Access Control
Publication date:
09/02/2017
Last modified:
20/04/2025

Description

A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open Internet Explorer with the privileges of the SYSTEM user. The vulnerability is due to insufficient implementation of the access controls. An attacker could exploit this vulnerability by opening the Internet Explorer browser. An exploit could allow the attacker to use Internet Explorer with the privileges of the SYSTEM user. This may allow the attacker to execute privileged commands on the targeted system. This vulnerability affects versions prior to released versions 4.4.00243 and later and 4.3.05017 and later. Cisco Bug IDs: CSCvc43976.

Impact

Vector 3.x
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00048:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00051:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00052:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00057:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.0.00061:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.00028:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.02011:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.04011:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.06013:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.06020:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.1.08005:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.00096:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.01022:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.01035:*:*:*:*:*:*:*
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:4.2.02075:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools